JFK airport suspended operations at 7:41 a.m. today, grounding all flights due to the blizzard that dumped over a half foot of snow on NYC. The airport remains open, but if you're waiting for a flight you might as well make yourself at home and grab a Cinnabon. According to the FAA, JFK expects to resume flights at about 9:30 a.m. LaGuardia and Newark are operating, but with delays. At least 500 flights have been canceled so far. [UPDATE: JFK has resumed operations, with delays.]

The MTA stored many of its trains underground on express tracks to protect the equipment. Because of this, the MTA says, "all trains will run local for the start of the morning rush hour, until all stored trains are moved from the express tracks." There are some switch problems and service changes as a result of the snow, but the subway system seems to be hobbling along as well as can be expected.

Same for the buses—the MTA says 85% of the city's bus tires have been equipped with chains and they are running, but "service levels will be evaluated as the storm continues." Metro-North and the LIRR will operate on a weekend schedule, with anticipated delays. De-icers have been deployed to prevent build-up of sleet and freezing rain on rails throughout the MTA system, and trains with scraper shoes have also been put in service. Please remember to tip your MTA worker.

Some 2,100 plows are working around the clock to clear the roads, along with approximately 450 salt spreaders. Harry Nespoli, president of the sanitation workers union, said all major thoroughfares were passable but urged the public to stay off the roads. "The only problem was that some of the salt that hit the ground isn't really doing the job because the temperature is so cold," Nespoli told reporters. "We're just hoping the sun is going to come out. If the temperatures don't get up, the snow will be around awhile."

Temperatures in NYC aren't expected to rise about 29 degrees until Sunday.